[PATCH v3 0/8] ALSA: Fix some bugs reported by Sashiko

[Takashi Iwai]

Hi,

here is the revised patch series of the previous fix series.
Now Sashiko reports the existing bugs, I took a look, grabbed a few
critical ones, and here are the fix patches.  About a half are about
core stuff and a few about USB-audio mixers.


Takashi

v1: https://lore.kernel.org/20261006134035.478529-1-tiwai@xxxxxxx
v2: https://lore.kernel.org/20261007093638.1049688-1-tiwai@xxxxxxx

v1->v2: fix mutex() scope in USB mixer mutex in patch 5.
v2->v3: covering selector unit with mutex, destroy the mixer mutex in patch 5
	fix MAX_CHANNELS check in patch 7

===

Takashi Iwai (8):
  ALSA: seq: Drop the bogus RCU guard from clientptr()
  ALSA: pcm: Fix TOCTOU state overwrite in snd_pcm_drop()
  ALSA: hda: Fix potential UAF for gating jack
  ALSA: usb-audio: Fix invalid UAC2/3 mixer unit matrix evaluation
  ALSA: usb-audio: Fix data race at mixer_ctl_feature_info()
  ALSA: pcmtest: Fix a bogus pointer read in snd_pcmtst_pcm_pointer()
  ALSA: usb-audio: Fix mixer bitmap cache over 32 channels
  ALSA: core: Add missing barriers for power_ref vs card->shutdown

 sound/core/init.c              |   4 +
 sound/core/pcm_native.c        |   2 +-
 sound/core/seq/seq_clientmgr.c |  21 ++---
 sound/drivers/pcmtest.c        |   3 +-
 sound/hda/common/jack.c        |   9 +-
 sound/usb/mixer.c              | 146 +++++++++++++++++++++++----------
 sound/usb/mixer.h              |   3 +-
 sound/usb/mixer_scarlett.c     |  18 ++--
 sound/usb/mixer_us16x08.c      |  20 ++---
 9 files changed, 143 insertions(+), 83 deletions(-)

-- 
2.55.0